Re: Switching PL/Python to Python 3 by default in PostgreSQL 12

From: Steven Pousty <steve(dot)pousty(at)gmail(dot)com>
To: Peter Eisentraut <peter(dot)eisentraut(at)2ndquadrant(dot)com>
Cc: pgsql-hackers(at)postgresql(dot)org
Subject: Re: Switching PL/Python to Python 3 by default in PostgreSQL 12
Date: 2019-07-06 22:34:56
Message-ID: CAKmB1PF+otdHHsAJNK6_mOP7WhSSXBFUX4S-0MqMaTxbRcDcgA@mail.gmail.com
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Why would it be a 13 or later issue?
I am specifically talking about changing the default.

On Sat, Jul 6, 2019, 6:28 PM Peter Eisentraut <
peter(dot)eisentraut(at)2ndquadrant(dot)com> wrote:

> On 2019-07-06 21:02, Steven Pousty wrote:
> > /" The default will probably be changed to Python 3 in a distant future
> > release of PostgreSQL, depending on the progress of the migration to
> > Python 3 in the Python community."/
> >
> > I know we are late in the Postgresql 12 cycle but I think switching the
> > default to Python 3 is warranted given:
>
> "The default" in the above statement refers to what version the language
> name "plpythonu" invokes. That is separate from whether an installer or
> packager chooses to install a Python-2-based version. I expect that as
> operating systems remove Python 2 from their systems, packagers will
> also remove Python-2-based plpython packages. So there is no issue.
>
> We could change plpythonu to be an alias for plpython3u instead of
> plpython2u, but that would be a PG13 (or later) change. I notice that
> PEP-394 now supports this.
>
> --
> Peter Eisentraut http://www.2ndQuadrant.com/
> PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
>

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